254404123 has 2 divisors, whose sum is σ = 254404124. Its totient is φ = 254404122.

The previous prime is 254404103. The next prime is 254404207. The reversal of 254404123 is 321404452.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254404123 is a prime.

It is not a weakly prime, because it can be changed into another prime (254404103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127202061 + 127202062.

It is an arithmetic number, because the mean of its divisors is an integer number (127202062).

Almost surely, 2^254404123 is an apocalyptic number.

254404123 is a deficient number, since it is larger than the sum of its proper divisors (1).

254404123 is an equidigital number, since it uses as much as digits as its factorization.

254404123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 254404123 is about 15950.0508776618. The cubic root of 254404123 is about 633.6382441011.

Adding to 254404123 its reverse (321404452), we get a palindrome (575808575).

The spelling of 254404123 in words is "two hundred fifty-four million, four hundred four thousand, one hundred twenty-three".